Clearance issues
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Joined: Oct 2005
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From: Gummersbach/Germany NRW
Clearance issues
I have a ZZ3 350cid in my ‚71 convertible. At the present I’m running a Holley 700 DP and have 1 – 2mm clearance. Since the Holley is giving me loads of trouble, I have ordered a Demon 650 DP. I put one on my cobra and was very happy with it’s performance. I want to put the ½” spacer in as well. Now I will have serious clearance issues. Can I put a big block hood on my car without any major modifications, can I use the same hinges and so on? What other options do I have?
Melting Slicks
Joined: Mar 2006
Posts: 3,342
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From: Connecticut
Originally Posted by wayne64
Can I put a big block hood on my car without any major modifications, can I use the same hinges and so on? What other options do I have?
When you say spacer, are you talking about a phenolic (Heat sync)riser/spacer?
I found it necessary when running a Holley to stop the fuel from boiling or percolating as they say.
What Intake are you using?
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Joined: Oct 2005
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From: Gummersbach/Germany NRW
Originally Posted by Bob Onit
I dont think the BB hood will be a problem ..other than getting the paint to match
When you say spacer, are you talking about a phenolic (Heat sync)riser/spacer?
I found it necessary when running a Holley to stop the fuel from boiling or percolating as they say.
What Intake are you using?
When you say spacer, are you talking about a phenolic (Heat sync)riser/spacer?
I found it necessary when running a Holley to stop the fuel from boiling or percolating as they say.
What Intake are you using?
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Great
Like I said, the only problem I see is the paint issue
I am not by any means a body man but from what I understand, Silver or gray is very difficult to match.
I may be wrong so I would wait for a more educated reply.
Like I said, the only problem I see is the paint issue
I am not by any means a body man but from what I understand, Silver or gray is very difficult to match.
I may be wrong so I would wait for a more educated reply.
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by wayne64
Bob,
do you know the clearance gain I would get (in inches) with a BB hood?
Agian, it's a 1971.
Thanks
do you know the clearance gain I would get (in inches) with a BB hood?
Agian, it's a 1971.
Thanks
I have a 73' and it has a good rise to it but theres alot of members who have solved the problem you are having
Hopefully someone will advise...
Race Director
Joined: Apr 1999
Posts: 11,520
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From: CORVETTE 77 385 C.I. TEXAS
There needs to be at least about 3/4" clearance over the Holley vent tubes.
68-72 standard hoods have limited clearance. There would not be enough clearance w/ the stock low rise hood. The stock LT-1/BB hood & stock low drop base filter w/o spacer should work though somewhat restrictive.
The hi rise L-88 hood would work.
An aftermarket 76-79 type med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket dropbase filter & Holley.
68-72 standard hoods have limited clearance. There would not be enough clearance w/ the stock low rise hood. The stock LT-1/BB hood & stock low drop base filter w/o spacer should work though somewhat restrictive.
The hi rise L-88 hood would work.
An aftermarket 76-79 type med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket dropbase filter & Holley.
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Joined: Oct 2005
Posts: 83
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From: Gummersbach/Germany NRW
Originally Posted by Ganey
There needs to be at least about 3/4" clearance over the Holley vent tubes.
68-72 standard hoods have limited clearance. There would not be enough clearance w/ the stock low rise hood. The stock LT-1/BB hood & stock low drop base filter w/o spacer should work though somewhat restrictive.
The hi rise L-88 hood would work.
An aftermarket 76-79 type med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket dropbase filter & Holley.
68-72 standard hoods have limited clearance. There would not be enough clearance w/ the stock low rise hood. The stock LT-1/BB hood & stock low drop base filter w/o spacer should work though somewhat restrictive.
The hi rise L-88 hood would work.
An aftermarket 76-79 type med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket dropbase filter & Holley.
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